Abstract
Due to the growing popularity of endoscopic operations, the opportunities for otolaryngologists to perform dacryorhinostomies are increasing. Both opthalmologists and otolaryngologists jointly performed a dacryorhinostomy for the treatment of a lacrimal passage obstruction in 7 cases on 8 sides. The operation used an endoscope and a light guide for the crystallite body operation. The results were good, although the operation had to be performed 3 times in 1 case on 1 side. Such endoscopic operations are now safe, effective and easy to perform. This surgical procedure is also especially useful for confirming the fenestration position using the light guide which can illuminate an area ranging from the lacrimal sac to the nasal cavity.
